01178nam a2200277 i 4500991001460829707536051220s2000 it b 000 0 eng d8881472651b13376068-39ule_instDip.to Matematicaeng515.353AMS 35LNishitani, Tatsuo59540Hyperbolic equations with double characteristics /by Tatsuo NishitaniPisa ;Roma :Istituti Editoriali e Poligrafici Internazionali,c200088 p. ;24 cmAt head of title: Università di Pisa, Dipartimento di Matematica, Dottorato di ricerca in matematicaIncludes bibliographical referencesPartial differential equations of hyperbolic typeUniversità di Pisa :Dipartimento di matematica.b1337606802-04-1401-02-06991001460829707536LE013 35L NIS11 (2000)12013000200729le013gE12.00-l- 00000.i1418797802-02-06Hyperbolic equations with double characteristics1094329UNISALENTOle01320-12-05ma -engit 00